<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<!--<div style="width: 100px;height: 100px;background-color: #0000ff;"></div>-->
<!--<div style="width: 100px;height: 100px;background-color: rgb(100,255,0);"></div>-->
<!--<div style="width: 100px;height: 100px;background-color: rgba(255,0,0,0.5);"></div>-->
<div style="width: 100px;height: 100px;background-color: hsl(240,100%,50%);"></div>


</body>
</html>